 Shorter ring and pinion |
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| bam914 |
 Nov 2 2005, 07:24 PM
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#1
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Member  Group: Members Posts: 334 Joined: 23-November 03 From: Atlanta, Ga Member No.: 1,378 Region Association: None  |
I thought that there were two other final drives for the 901 trans a taller then stock and a shorter one. If there is a shorter one does anyone know what the ratio is?
Thanks Blake Meredith new 914 project |
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| Dave_Darling |
Nov 2 2005, 08:00 PM
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#2
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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If there is a different one, it would be for the Sportomatic transmission, I believe. I don't think any of the regular ones have anything but 7:31, and the Sportos may even have had it as well.
--DD |
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| Aaron Cox |
Nov 2 2005, 08:02 PM
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#3
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
i know there is a shorter one. also, custom taller ones have been made.
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| TimT |
Nov 2 2005, 08:18 PM
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#4
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
yes other r/p sets exist, the sporto is a big source, rare and unobtanioum are the others.
Its easier and cheaper usually to change gears to suit rather than change the r/p and still have the same rpm drops between gears. Ive been living in a hotel room for the last 2 months, and dont have ready access to my manuals. they are 360 miles away as I type. You can keep your existng ring and pinion, and shuffle one or two of your exisitng gears, and then source one gearset to make a nice box.. why do you want to change the ring and pinion? |
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| Bleyseng |
Nov 2 2005, 08:20 PM
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#5
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Aircooled Baby! Group: Members Posts: 13,035 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Yep, the other r&p's were mostly used in race boxes so they are made of unobtaininum. (IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) |
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| bam914 |
Nov 2 2005, 08:31 PM
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#6
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Member Group: Members Posts: 334 Joined: 23-November 03 From: Atlanta, Ga Member No.: 1,378 Region Association: None |
I know about moving and fliping gears but the class I am going to run only allows a final drive change. I might not need one but was just wondering what was out there.
Thanks Blake Meredith |
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| brant |
Nov 2 2005, 09:52 PM
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#7
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914 Wizard Group: Members Posts: 11,641 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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Blake,
yes. Is it a PCA production class? I know some PCA production 914's in colorado (2 that I know of) that have a different R/P because of the rules. I think its the 6:29 you want, but I'm going from memory here. it will be legal in PCA, and drop all of your gearing. not cheap. I almost purchased one once, and chickened out. count your installation cost too... probably 500 at a lot of shops. brant |
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| ChrisFoley |
Nov 3 2005, 06:18 AM
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#8
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I am Tangerine Racing Group: Members Posts: 7,937 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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I still have the 6:29 that I bought from Carquip 10 years ago.
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| bam914 |
Nov 3 2005, 11:23 AM
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#9
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Member Group: Members Posts: 334 Joined: 23-November 03 From: Atlanta, Ga Member No.: 1,378 Region Association: None |
I knew there was one. I just could not remember what it was. Chris if do not need the R&P let me know I might be interested. I am in the process of building an ITC 914. Although I do not have a car yet.
Thanks Blake Meredith |
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| ChrisFoley |
Nov 3 2005, 12:10 PM
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#10
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I am Tangerine Racing Group: Members Posts: 7,937 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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(IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) I have been saving the R&P for a future IT project for myself but maybe its time for me to move on. PM me if you want it. |
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| Matt Monson |
Nov 3 2005, 12:22 PM
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#11
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Member Group: Members Posts: 156 Joined: 9-August 05 From: Boulder, CO Member No.: 4,562 Region Association: Rocky Mountains |
Have it in your car or have in in your garage? We do still have one of those here at Carquip. It is a NOS unit, and it is far from cheap... |
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